a poltergeist steals a slice of #pumpki… by jellyedwards

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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jellyedwards

function u(t) {

h=32
with(x)for(k=c.width=512;k--;beginPath(fill(ellipse(a,b,99,h,0,2-j,1+j))))fillStyle=`hsl(${i=h+k%h} 99%50%`,moveTo(a=256,b=i+(j=k<a)*t)

Oct 18 2020 9:38 PM UTC

}// 140/140

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a poltergeist steals a slice of #pumpkin pie extremely slowly

u/jellyedwards

the journey from ~300 chars to 140 is tough!
u/jellyedwards

could've shaved off a couple more bytes and have it work in Safari too:
u/jellyedwards

h=32 with(x)for(k=c.width=512;k--;beginPath(fill(ellipse(a,b,99,h,0,2,1,j))))fillStyle=hsl(${i=h+k%h},99%,50%,moveTo(a=256,b=i+(j=k<a)*t)
u/jellyedwards

h=32,with(x)for(k=c.width=512;k--;beginPath(fill(ellipse(a,b,99,h,0,2,1,j))))fillStyle=`hsl(${i=h+k%h},99%,50%`,moveTo(a=256,b=i+(j=k<a)*t)
u/Xen

slowly is how they always steal it :-(


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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